exp
(PHP 3, PHP 4, PHP 5)
exp -- Calculates the exponent of
e (the
Neperian or Natural logarithm base)
Description
float
exp ( float arg )
Returns e raised to the power of arg.
Замечание:
'e' is the base of the natural system of logarithms, or approximately
2.718282.
Пример 1. exp() example
<?php
echo exp(12) . "\n";
echo exp(5.7);
?>
|
Результат выполнения данного примера: |
See also
log() and
pow().